[squid-users] Squid and Kerberos problems

Markus Moeller huaraz at moeller.plus.com
Sun May 3 17:36:41 UTC 2015 

Hi Olivier,

   You may need to check with the msktutil authors as this is not directly related to squid. 

Regards
Markus

"Olivier CALVANO" <o.calvano at gmail.com> wrote in message news:CAJajPecBcrbW+jtiwF2J=ujZ4KwDTWF6oPzJF56pVz+-gfNfLw at mail.gmail.com...
Hi


i have compiled the 1.0rc version :



[root at gw msktutil-1.0rc1]# ./msktutil -c -b "CN=COMPUTERS" -s HTTP/ophtcysrv1v4.myaddomain.fr -k /etc/squid/PROXY.keytab --computer-name OPHTCYSRV1V4-K --upn HTTP/ophtcysrv1v4.myasdomain.fr --server myad.myaddomain.fr --verbose --enctypes 28
-- init_password: Wiping the computer password structure
-- generate_new_password: Generating a new, random password for the computer account
-- generate_new_password:  Characters read from /dev/urandom = 93
-- create_fake_krb5_conf: Created a fake krb5.conf file: /tmp/.msktkrb5.conf-jPXQHu
-- reload: Reloading Kerberos Context
-- finalize_exec: SAM Account Name is: OPHTCYSRV1V4-K$
-- try_machine_keytab_princ: Trying to authenticate for OPHTCYSRV1V4-K$ from local keytab...
-- try_machine_keytab_princ: Error: krb5_get_init_creds_keytab failed (Client not found in Kerberos database)
-- try_machine_keytab_princ: Authentication with keytab failed
-- try_machine_keytab_princ: Trying to authenticate for OPHTCYSRV1V4-K$ from local keytab...
-- try_machine_keytab_princ: Error: krb5_get_init_creds_keytab failed (Client not found in Kerberos database)
-- try_machine_keytab_princ: Authentication with keytab failed
-- try_machine_keytab_princ: Trying to authenticate for host/gw.srv1-v4.tcy.sodiaal.ophelys.org from local keytab...
-- try_machine_keytab_princ: Error: krb5_get_init_creds_keytab failed (Client not found in Kerberos database)
-- try_machine_keytab_princ: Authentication with keytab failed
-- try_machine_password: Trying to authenticate for OPHTCYSRV1V4-K$ with password.
-- create_default_machine_password: Default machine password for OPHTCYSRV1V4-K$ is ophtcysrv1v4-k
-- try_machine_password: Error: krb5_get_init_creds_keytab failed (Client not found in Kerberos database)
-- try_machine_password: Authentication with password failed
-- try_user_creds: Checking if default ticket cache has tickets...
-- finalize_exec: Authenticated using method 5
-- LDAPConnection: Connecting to LDAP server: myad.myaddomain.fr
SASL/GSSAPI authentication started
SASL username: Myusername at MYADDOMAIN.FR
SASL SSF: 56
SASL data security layer installed.
-- ldap_get_base_dn: Determining default LDAP base: dc=MYDOMAIN,dc=FR
-- ldap_check_account: Checking that a computer account for OPHTCYSRV1V4-K$ exists
-- ldap_check_account: Computer account not found, create the account
No computer account for OPHTCYSRV1V4-K found, creating a new one.
-- ldap_check_account_strings: Inspecting (and updating) computer account attributes
-- ldap_check_account_strings: Found userPrincipalName =
-- ldap_check_account_strings: userPrincipalName should be HTTP/ophtcysrv1v4.myaddomain.fr at MYADDOMAIN.FR
-- ldap_set_userAccountControl_flag: Setting userAccountControl bit at 0x200000 to 0x0
-- ldap_set_userAccountControl_flag: userAccountControl not changed 0x1000
-- ldap_get_kvno: KVNO is 1
-- set_password: Attempting to reset computer's password
-- set_password: Try change password using user's ticket cache
-- ldap_get_pwdLastSet: pwdLastSet is 130751472429170776
Error: Unable to set machine password for OPHTCYSRV1V4-K$: (3) Authentication error
Error: set_password failed
-- ~KRB5Context: Destroying Kerberos Context







2015-05-03 13:25 GMT+02:00 Markus Moeller <huaraz at moeller.plus.com>:

  Did you compile msktutil or is it a package in centos ? 

  Markus

  "Olivier CALVANO" <o.calvano at gmail.com> wrote in message news:CAJajPecQD+_1KRUfwa9eAC4iYAKapZBLyg-9vuueKLGWUecopQ at mail.gmail.com...
  Hi



  Thanks for your answer

  CentOS Linux release 7.1.1503 (Core)

  krb5-workstation-1.12.2-14.el7.x86_64
  krb5-libs-1.12.2-14.el7.x86_64


  regards

  olivier



  2015-05-03 0:25 GMT+02:00 Markus Moeller <huaraz at moeller.plus.com>:

    Which OS and Kerberos version do you have ?  There might be some issue with the cache used KEYRING:persistent:0:0

    Markus

    "Olivier CALVANO" <o.calvano at gmail.com> wrote in message news:CAJajPefo3t8b1=_v5PFj3H0gq4Jk3OosuTW8gNHY7Z-Gs21qLg at mail.gmail.com...
    Hi


    I request your help because i want use NTLM/Kerberos for authenticate my user.


    For NTLM, i use Winbind, no problems, 

    [root at gw]# wbinfo -t
    checking the trust secret for domain MYADDOMAIN via RPC calls succeeded


    but for Kerberos, i can't create the .keytab


    [root at gw]# kinit MYUSERNAME
    Password for MYUSERNAME at MYADDOMAIN.FR:

    [root at gw]# klist
    Ticket cache: KEYRING:persistent:0:0
    Default principal: MYUSERNAME at MYADDOMAIN.FR

    Valid starting       Expires              Service principal
    02/05/2015 04:51:25  02/05/2015 14:51:25  krbtgt/MYADDOMAIN.FR at MYADDOMAIN.FR
            renew until 09/05/2015 04:51:07


    MYUSERNAME is the same account that i join the domain (net join) with winbind



    after, i put:

    msktutil -c -b "CN=COMPUTERS" -s HTTP/gw.srv1-v4.tcy.myinternetdomain.org -k /etc/squid/PROXY.keytab --computer-name OPHTCYSRV1V4-K --upn HTTP/gw.srv1-v4.tcy.myinternetdomain.org --server adserver1 --verbose


    and i have a error:

    [root at gw etc]# msktutil -c -b "CN=COMPUTERS" -s HTTP/gw.srv1-v4.tcy.myinternetdomain.org -k /etc/squid/PROXY.keytab --computer-name OPHTCYSRV1V4-K --upn HTTP/gw.srv1-v4.tcy.myinternetdomain.org --server adserver1 --verbose
    -- init_password: Wiping the computer password structure
    -- generate_new_password: Generating a new, random password for the computer account
    -- generate_new_password:  Characters read from /dev/udandom = 84
    -- create_fake_krb5_conf: Created a fake krb5.conf file: /tmp/.msktkrb5.conf-jnxTuG
    -- reload: Reloading Kerberos Context
    -- finalize_exec: SAM Account Name is: OPHTCYSRV1V4-K$
    -- try_machine_keytab_princ: Trying to authenticate for OPHTCYSRV1V4-K$ from local keytab...
    -- try_machine_keytab_princ: Error: krb5_get_init_creds_keytab failed (Client not found in Kerberos database)
    -- try_machine_keytab_princ: Authentication with keytab failed
    -- try_machine_keytab_princ: Trying to authenticate for host/gw.srv1-v4.tcy.myinternetdomain.org from local keytab...
    -- try_machine_keytab_princ: Error: krb5_get_init_creds_keytab failed (Client not found in Kerberos database)
    -- try_machine_keytab_princ: Authentication with keytab failed
    -- try_machine_password: Trying to authenticate for OPHTCYSRV1V4-K$ with password.
    -- create_default_machine_password: Default machine password for OPHTCYSRV1V4-K$ is ophtcysrv1v4-k
    -- try_machine_password: Error: krb5_get_init_creds_keytab failed (Client not found in Kerberos database)
    -- try_machine_password: Authentication with password failed
    -- try_user_creds: Checking if default ticket cache has tickets...
    -- try_user_creds: Error: krb5_cc_get_principal failed (No credentials cache found)
    -- try_user_creds: User ticket cache was not valid.
    Error: could not find any credentials to authenticate with. Neither keytab,
         default machine password, nor calling user's tickets worked. Try
         "kinit"ing yourself some tickets with permission to create computer
         objects, or pre-creating the computer object in AD and selecting
         'reset account'.
    -- ~KRB5Context: Destroying Kerberos Context




    same error if i change gw.srv1-v4.tcy.myinternetdomain.org to ophtcysrv1v4.myaddomain.fr



    anyone know the origin of this error ?


    thanks

    Olivier




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